jenkins.io

.io toplist crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 3708 ms crawled 2026-05-18

US · 128.24.70.119 · AS8075 Microsoft Corporation

Reputation 100/100

Classifying

HTML metadata

Title: Jenkins
Description: Jenkins – an open source automation server which enables developers around the world to reliably build, test, and deploy their software
Language: en
Canonical: https://www.jenkins.io/

Open Graph

url: https://www.jenkins.io/
title: Jenkins
site name: Jenkins
description: Jenkins – an open source automation server which enables developers around the world to reliably build, test, and deploy their software

Technology

Social widgets

YouTube Embed

Third-party hosts loaded (4)

cdn.jsdelivr.net×5
cdnjs.cloudflare.com×2
avatars.githubusercontent.com×1
www.youtube.com×1

Social

DNS records live

NS

ns1-06.azure-dns.com
ns2-06.azure-dns.net
ns3-06.azure-dns.org
ns4-06.azure-dns.info

MX

10 mxa.mailgun.org
10 mxb.mailgun.org

TXT

Show 4 TXT records

_globalsign-domain-verification=b1pmSjP4FyG8hkZunkD3Aoz8tK0FWCje80-YwtLeDU
google-site-verification=4Z81CA6VzprPWEbGFtNbJwWoZBTGmTp3dk7N0hbt87U
jetbrains-domain-verification=9memu05gp112di1q7gijggppf
libera-MjLnxZ2KPqJJnJr6X4WFovAe

Email authentication strong

SPF

v=spf1 include:mailgun.org include:sendgrid.net include:_spf.google.com ~all

softfail (~all)

DMARC

v=DMARC1; p=reject; pct=100;rua=mailto:jenkins-dmarc@olblak.com

policy: reject (enforced)

DKIM

s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAndtiZ1rUbyB7hGPDdStnxiT5i2ttqEHagRkyPemoA65WltkfCbmReicmBOg1AODpY4kINxXvcERB1OBZ82…
s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeUnc9m1vMPyy/LUGw7saeE7dReVktlSNJsWHbIx5wXVeKQSov0gbQ+NRM4nCF+wQpdAIgBaqLRHYS0BkBs1ZT44…

selectors probed

Certificate (current)

R12

from 2026-03-22 to 2026-06-20

Expires in 32 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 65/100 Checked live page: https://www.jenkins.io/

present

strict-transport-security
x-frame-options
x-content-type-options

findings

short HSTS max-age
missing Content Security Policy
missing Referrer Policy
missing Permissions Policy

Header values

x-frame-options: DENY
x-content-type-options: nosniff
strict-transport-security: max-age=86400; includeSubDomains; preload